SECTION 4—WHEELS AND WHEEL LOCKS
40
Adjusting Caster Assembly
NOTE: For this procedure, refer to FIGURE 4.5.
NOTE: Front and rear caster assemblies are adjusted in the same manner.
1. Remove the head tube cover from the head tube.
2. To properly tighten caster assembly and guard against flutter, perform the following
check:
NOTE: Two people are recommended to perform this STEP - one to tip wheelchair back and one to
inspect/adjust the caster assembly.
A. Tip back the wheelchair.
B. Pivot both caster assemblies to top of their arc simultaneously.
C. Let casters drop to bottom of arc (casters should swing once to one-side, then
immediately rest in a straight downward position).
D. Adjust 5/8-1/8-inch locknuts according to freedom of caster swing.
3. Test wheelchair for maneuverability.
4. Readjust 5/8-1/8-inch locknuts if necessary, and repeat STEPS 2-3 until correct.
5. Snap head tube cover into the caster head tube, ensuring that the head tube cover fits
securely.
FIGURE 4.5
Fork
Head Tube
5/8-1/8-inch Locknut
Head Tube Cover